The PCA9515A is a CMOS integrated circuit intended for application in I2C-bus and SMBus systems.
While retaining all the operating modes and features of the I2C-bus system, it permits extension of the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF.
The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9515A enables the system designer to isolate two halves of a bus, thus more devices or longer length can be accommodated. It can also be used to run two buses, one at 5 V and the other at 3.3 V or a 400 kHz and 100 kHz bus, where the 100 kHz bus is isolated when 400 kHz operation of the other is required.
Two or more PCA9515As cannot be put in series. The PCA9515A design does not allow this configuration. Since there is no direction pin, slightly different 'legal' low voltage levels are used to avoid lock-up conditions between the input and the output. A 'regular LOW' applied at the input of a PCA9515A will be propagated as a 'buffered LOW' with a slightly higher value. When this 'buffered LOW' is applied to another PCA9515A, PCA9516A or PCA9518/A in series, the second PCA9515A, PCA9516A or PCA9518/A will not recognize it as a 'regular LOW' and will not propagate it as a 'buffered LOW' again. The PCA9510/A, PCA9511/A, PCA9512/A, PCA9513/A, PCA9514/A cannot be used in series with the PCA9515A, PCA9516A or PCA9518/A, but can be used in series with themselves since they use shifting instead of static offsets to avoid lock-up conditions.
The output pull-down of each internal buffer is set for approximately 0.5 V, while the input threshold of each internal buffer is set about 0.07 V lower, when the output is internally driven LOW. This prevents a lock-up condition from occurring.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| PCA9515AD | PCA9515AD,112 | 9352 767 66112 | Volume production | SOT96 | Tube | Standard Marking | |
| PCA9515AD | PCA9515AD,118 | 9352 767 66118 | Volume production | SOT96 | Reel Pack, SMD, 13" | Standard Marking | |
| PCA9515AD/G | PCA9515AD/G,112 | 9352 769 37112 | Volume production | SOT96 | Tube | Standard Marking | |
| PCA9515AD/G | PCA9515AD/G,118 | 9352 769 37118 | Volume production | SOT96 | Reel Pack, SMD, 13" | Standard Marking | |
| PCA9515ADP | PCA9515ADP,118 | 9352 759 98118 | Volume production | SOT505 | Reel Pack, SMD, 13" | Standard Marking | |
| PCA9515ADP/DG | PCA9515ADP/DG,118 | 9352 858 93118 | Volume production | SOT505 | Reel Pack, SMD, 13" | Standard Marking | |
| PCA9515ADP/G | PCA9515ADP/G,118 | 9352 769 38118 | Volume production | SOT505 | Reel Pack, SMD, 13" | Standard Marking |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| PCA9515AD | PCA9515AD,112 | PCA9515AD |
| week 5, 2005 | ||||
| PCA9515AD | PCA9515AD,118 | PCA9515AD |
| week 5, 2005 | ||||
| PCA9515AD/G | PCA9515AD/G,112 | PCA9515AD_G |
| week 13, 2005 | ||||
| PCA9515AD/G | PCA9515AD/G,118 | PCA9515AD_G |
| week 13, 2005 | ||||
| PCA9515ADP | PCA9515ADP,118 | PCA9515ADP |
| week 12, 2005 | ||||
| PCA9515ADP/DG | PCA9515ADP/DG,118 | PCA9515ADP_DG |
| Always Pb-free | ||||
| PCA9515ADP/G | PCA9515ADP/G,118 | PCA9515ADP_G |
| week 13, 2005 |
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| PCA9515AD | 9352 767 66112 | PCA9515AD,112 | 1.0200 | NA | ARROW ELECTRONICS | 1,502 | 11/19/2009 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 881 | 11/20/2009 | Buy online | ||||||
| PCA9515AD | 9352 767 66118 | PCA9515AD,118 | 1.0200 | NA | ARROW ELECTRONICS | 1,502 | 11/19/2009 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 2,832 | 11/20/2009 | Buy online | ||||||
| ASIA | SAC - Taiwan | yes | 2500 | 11/20/2009 | Buy online | |||||
| PCA9515AD/G | 9352 769 37112 | PCA9515AD/G,112 | not available | |||||||
| PCA9515AD/G | 9352 769 37118 | PCA9515AD/G,118 | Order samples | |||||||
| PCA9515ADP | 9352 759 98118 | PCA9515ADP,118 | 1.0200 | NA | AVNET ELECTRONICS MARKETING | 2,095 | 11/19/2009 | Buy online | Order samples | |
| ASIA | SAC - Taiwan | yes | 2500 | 11/20/2009 | Buy online | |||||
| ASIA | WPI | 34 | 1 | 11/19/2009 | Buy online | |||||
| PCA9515ADP/DG | 9352 858 93118 | PCA9515ADP/DG,118 | NA | FUTURE ELECTRONICS | 1,482 | 11/19/2009 | Buy online | not available | ||
| NA | ARROW ELECTRONICS | 2,500 | 11/19/2009 | Buy online | ||||||
| PCA9515ADP/G | 9352 769 38118 | PCA9515ADP/G,118 | not available |
Related applications
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Application Notes
Support Documents
| Type number | Package | Operating temp.(Cel) | I²C-bus(kHz) | Operating voltage(VDC) | Inputs | Outputs |
|---|---|---|---|---|---|---|
| PCA9515AD | SOT96
| -40~85 | 400 | 2.3~3.6 | 1 | 1 |
| PCA9515AD/G | SOT96
| -40~85 | 400 | 2.3~3.6 | 1 | 1 |
| PCA9515ADP | SOT505
| -40~85 | 400 | 2.3~3.6 | 1 | 1 |
| PCA9515ADP/DG | SOT505
| -40~85 | 400 | 2.3~3.6 | 1 | 1 |
| PCA9515ADP/G | SOT505
| -40~85 | 400 | 2.3~3.6 | 1 | 1 |
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